Dr. Dresslers Dog Cancer Diet is appropriate for most dogs, but dogs with mast cell tumors need a few modifications. Read this if your dog needs a low-histamine diet.
PMR diets are ratio based diets consisting of 80% muscle meat, 10% bone, 5% liver, and 5% other secreting organ. Many join Raw Fed & Nerdy because they hear that PMR diets are not complete or balanced. Many dogs appear to do quite well on PMR diets.
A board-certified allergist explains the low-histamine diet: which foods to eat and avoid, how histamine intolerance differs from true food allergies, and when to see a specialist for allergy-adjacent symptoms.

Histamine intolerance can be hard to differentiate from food sensitives, but when we get to the root cause of our gut issues, the whole body can heal!Potential causes of histamine intolerance. Testing strategies for histamine intolerance. The histamine and thyroid connection.
Tingling skin. Intolerant to heat. Having since cleaned up my lifestyle, diet, environment, gut, mindset and added supplementation, my histamine intolerance is now significantly improved. It comes back fast, however.

Dogs who are experiencing an allergy-like response to histamine-rich foods may have a condition known as histamine intolerance. There may be dogs with genetic traits that increase their sensitivity to histamine. Dogs with mast cell tumors MAY need a low-histamine diet.
Schwelberger HG. Diamine oxidase and histamine intolerance.